CN101714428B - Afterheat recycling method and device thereof in enamelled wire production - Google Patents
Afterheat recycling method and device thereof in enamelled wire production Download PDFInfo
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- CN101714428B CN101714428B CN2009101526259A CN200910152625A CN101714428B CN 101714428 B CN101714428 B CN 101714428B CN 2009101526259 A CN2009101526259 A CN 2009101526259A CN 200910152625 A CN200910152625 A CN 200910152625A CN 101714428 B CN101714428 B CN 101714428B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to afterheat recycling method and device thereof in enamelled wire production. The device comprises two heat collectors which are respectively a heat collecting pipe and a coil, and the heat collecting pipe and the coil finish twice afterheat collections and twice afterheat transmissions respectively through two heat transmission pipelines, wherein the quantities of heat transmitted each time are different and respectively applied to heating processes of different degrees of an annealing furnace so as to ensure that the use of electric energy of the annealing furnace originally required to be electrically heated is reduced, thereby greatly improving the utilization of the afterheat and reduce the emission of pollutions.
Description
Technical field
The present invention relates to the method and the implement device of the energy-saving and emission-reduction in a kind of Production of Enamel Wires, relate in particular to heat recovery method and device thereof in a kind of Production of Enamel Wires.
Background technology
Enamelled wire is raw material important in the mechanical electronic equipment, along with a large amount of of electronic equipment, instrument popularize, promoted development of social productivity on the one hand greatly, also the demand of enamelled wire is increased greatly on the other hand, and how in the process of producing enamelled wire, accomplish energy-conservation, UTILIZATION OF VESIDUAL HEAT IN, reduce discharging, reduce the discharging of dusty gas, become the focus technology developing direction of Production of Enamel Wires enterprise.The solvent vapo(u)r of special baking box volatilization in baker, there is a large amount of heats to utilize on the one hand, very big pollution is arranged on the other hand, when directly discharging, can lose a large amount of heat energy in vain, also cause serious environmental to pollute, and on the annealing operation in Production of Enamel Wires, be that copper cash in will advancing heats in the furnace chamber in annealing, air is heated to by room temperature that temperature needs more heat in the stove, generally realizes with electric energy.Recuperation of heat in more existing Production of Enamel Wires utilizes technology that above-mentioned both direction is all had certain innovation, but all also do not make good use of heat energy as much as possible, with the minimizing of polluting, as the patent No. be: 200720112937.3 a kind of enamel wire drying oven using waste heat from tail gas recycle devices that confession is opened, mainly formed by enamel wire drying oven, on enamel wire drying oven, be provided with heated air circulation device, on heated air circulation device, once be provided with heater and catalytic burner before circulating fan, the catalysis.This equipment has reclaimed waste heat to a certain extent, is provided with two combustion box especially and will discards abundant burning, greatly reduces pollution, yet this device needs more burner to increase cost, has increased energy use, does not better finish energy-conservation effect.And for example the patent No. is: the heat reclamation device on a kind of Production of Enamel Wires line of 200820034557, and it adopts water as heat exchange medium, have waste heat absorbability very efficiently, but water has a lot of shortcomings, and air dielectric is not good.
Summary of the invention
For solving waste heat recovery ability in the above-mentioned described existing Production of Enamel Wires equipment, pollute technical barriers such as solving imperfection.
One object of the present invention is to provide the method for the heat recovery in a kind of Production of Enamel Wires, by the absorption of twice waste heat,, in annealing furnace, enamelled wire is carried out early stage and handle by the defeated heat of two heat supply pipelines, can make full use of waste heat, and effectively low the pollution.
Another object of the present invention is to provide the device of the heat recovery in a kind of Production of Enamel Wires, by thermal-collecting tube in the combustion box and the coil pipe in the heat exchanger, can fully absorb waste heat, effectively reduces and pollutes.
In order to reach aforementioned purpose of the present invention, the present invention adopts enamelled wire through second annealing furnace, first annealing furnace is again to baker, adopt the heat baking in the baker, and produce combustible waste gases simultaneously, the present invention collects combustible waste gases, combustion heating then, pass heat back first, second annealing furnace, improving efficiency of utilization, specifically is twice thermal-arrest by thermal-collecting tube in the combustion box and the coil pipe in the heat exchanger, respectively by the first defeated heat pipe, the second defeated heat pipe, first annealing furnace is advanced in waste heat recovery, second annealing furnace, this heat recovery method comprises following steps:
(a) fuel gas in the baker imports combustion box, the heat release of burning, and the tail gas delivery heat exchanger after the burning is discharged by tail gas discharging pipe at last.
(b) blower fan imports thermal-collecting tube with air, carries out the thermal-arrest first time, and heated air is transferred to first annealing furnace by the first defeated heat pipe.
(c) blower fan imports coil pipe with air, carries out the thermal-arrest second time, and heated air is transferred to second annealing furnace by the second defeated heat pipe.
(d) enamelled wire at first pass through (b) and (c) in first annealing furnace and second annealing furnace, carry out the electric heating heat of mixing and handle, the baker that enters then in (a) toasts.
Thermal-collecting tube in the foregoing description, coil pipe and tail gas discharging pipe are isolated mutually, thereby do not have waste gas and can enter heat supply pipeline.First annealing furnace and second annealing furnace all adopt the electric heating hybrid mode, after making full use of waste heat, carry out electrothermal treatment as required, because factors vary such as ambient temperature, the heat of defeated heat pipe transmission can change, heat treatment in annealing furnace then needs stable temperature, thereby auxiliary with electroheat equipment, heats.Igniter in the combustion box is the spark plug discharge igniting, and plug ignition is guaranteed safety and efficient.Temperature in the described combustion box is 800～900 ℃, after burning and the exchange for the first time, temperature is reduced to 350 ℃～450 ℃, secondary exchange back temperature is reduced to 150 ℃～250 ℃, the reduction of temperature guarantees not take place spontaneous combustion, temperature is higher when exchanging for the first time, the stroke of the exchange pipeline that needs is shorter, and the switching equipment that occurs in the combustion chamber is difficult for too complicated, secondary exchange temperature reduces, so the stroke of the exchange pipeline that needs is long, and is pollution-free punishment in the tail gas, long exchange pipeline can be set.
Heat recovery device in the Production of Enamel Wires of the present invention, comprise baker, the combustion box that is connected with baker, with last tail gas discharging pipe, its special feature is, described baker directly is communicated with combustion box by the air guide case, in combustion box, be provided with thermal-collecting tube, the thermal-collecting tube two ends connect the blower fan and the first defeated heat pipe respectively, the combustion box port of export connects heat exchanger, and the port of export of heat exchanger connects described tail gas discharging pipe, the coil pipe of arranging in heat exchanger, the coil pipe two ends connect the blower fan and the second defeated heat pipe respectively, and the first defeated heat pipe is communicated in the different annealing furnaces in the place ahead with the second defeated heat pipe.The design has the waste heat recovery process twice, be in combustion box for the first time, blower fan advances thermal-collecting tube with the air drum, thermal-collecting tube in combustion box is sent waste heat into the first defeated heat pipe after absorbing the heat that burns, the first defeated heat pipe connects annealing furnace and carries out heating of the first step, this moment, temperature was higher, be in heat exchanger for the second time, blower fan advances coil pipe with the air drum, coil pipe in heat exchanger absorbs the second defeated heat pipe of making a gift to someone behind the remaining waste heat, and the second defeated heat pipe connects annealing furnace and carries out second one heating, before the temperature of this moment can be lower than once, low pollution in the last heat exchanger, the exhaust emissions of few heat is gone out by scheduling to last discharged.
As preferably, described blower fan advances thermal-collecting tube with the air drum, then by entering in the annealing furnace behind the first defeated heat pipe; Described blower fan is with air drum inlet pipe dish, then by entering in the annealing furnace behind the second defeated heat pipe.Absorb waste heat twice.
As preferably, described thermal-collecting tube is accepted the heat in the combustion box, and described pipe dish is accepted the heat in the heat exchanger.Absorb waste heat twice.
As preferably, described air guide case is that lower port is big, and the longitudinal section that the upper end is young is trapezoidal pipeline, and wherein the width of lower port equates with the width of baker, and the width of upper port equates with the entrance width of combustion box.Gas in the baker enters combustion box more smoothly.
As preferably, described coil pipe is that spiral form is arranged.More effective absorption waste heat.
As preferably, described heat exchanger is large diameter long tube cylinder pipeline.Simple in structure, effect is obvious.
As preferably, described combustion box is provided with the indication compass whether the heat exchanger port closes.Show heat exchanger port state.
As preferably, heat-barrier material is all wrapped up in described heat exchanger and first, second defeated heat pipe outside.Reducing heat runs off.
As preferably, described tail gas discharging pipe is provided with blower fan, and blower fan sucks outside air in the tail gas discharging pipe, and tail gas discharging pipe connects the chimney on roof.Quicken the discharging of tail gas.
As preferably, be provided with tank (12) between described first annealing furnace and second annealing furnace, enamelled wire is annealed stove and tank respectively, enters at last in the baker, is provided with temperature sensor in annealing furnace inside.The flow process of Production of Enamel Wires, transducer are used to measure the temperature in the annealing furnace.
The present invention is heat recovery method and the device thereof in the Production of Enamel Wires, have two kinds of heat collectors, thermal-collecting tube and coil pipe, by two heat supply pipelines, finish residual heat collection twice respectively, twice waste heat transmits, the heat difference of the waste heat of twice transmission applies to the heating process in various degree of annealing furnace respectively, making needs electrically heated annealing furnace to reduce the use of electric energy originally, has significantly improved afterheat utilization, has also reduced the discharging of polluting.
Description of drawings
Fig. 1 is a UTILIZATION OF VESIDUAL HEAT IN flow chart of the present invention;
Fig. 2 is the specific implementation device of UTILIZATION OF VESIDUAL HEAT IN of the present invention.
Description of reference numerals: baker 1, combustion box 2, tail gas discharging pipe 3, blower fan 4, air guide case 5, thermal-collecting tube 6, the first defeated heat pipes 7, heat exchanger 8, coil pipe 9, the second defeated heat pipe 10, the first annealing furnaces 11, tank 12, compass 13, the second annealing furnaces 14.
Embodiment
Below in conjunction with accompanying drawing be example with the preferred embodiment to the technological means that realizes described purpose of the present invention and adopt extremely effect describe.
The present invention at first discloses the heat recovery method in a kind of Production of Enamel Wires, specifies the flow process of this heat recovery below in conjunction with accompanying drawing 1.In the process that enamelled wire toasts in baker, generation has the waste gas of high heat, these waste gas are mainly by the solvent of enamelled wire with the high-load in the insulating varnish, the diluent burning forms, these materials have very high fuel value, be generally 9-12kwh/kg, composition is generally cresols, dimethylbenzene, aromatic hydrocarbons such as toluene, directly discharging can cause thermal waste and environmental pollution, thereby at first these waste gas are imported combustion box, burning inwardly is provided with catalyst delivery outlet and spark plug, add combustion catalyst and igniting, on baker, also be provided with blower fan, the air in the external world is blasted baker, help burning, also add simultaneously flowing of air blast, the gas major part after the burning is carbon dioxide and water, can not pollute air.Second portion is that the waste heat in these pollution-free gases is reclaimed, exhaust temperature after the burning is at 800 ℃, carry out waste heat recovery twice by front and back, earlier air is imported combustion box by blower fan, carry out the heat exchange first time, burning the temperature inside the box height, rate of heat exchange is fast, and what the thermal-collecting tube of combustion box inside designed is firm and simple, short and small, reducing to 400 ℃ through the exhaust temperature after the heat exchange for the first time, enter heat exchange for the second time then, because temperature lowers, so with the thick length of heat exchanger designs, inner coil pipe can be more intensive, absorb waste heat as far as possible, enter the interior gas temperature of tail gas discharging pipe at last greater than about 200 ℃.Aspect UTILIZATION OF VESIDUAL HEAT IN, the waste heat that first heat exchange is reclaimed is used for the heat treatment of first annealing furnace, and temperature is higher, the gas temperature that is reclaimed is at 350 ℃, the waste heat that heat exchange is for the second time reclaimed then is used for the heat treatment of second annealing furnace, and temperature is low than the former, and the gas temperature that is reclaimed is at 200 ℃.The rotating speed difference of each blower fan provides different air capacities to enter three pipelines, and the air velocity that first heat exchange is provided is the fastest, and the air velocity that second heat exchange is provided is the slowest.
The present invention discloses the implement device of the heat recovery method in a kind of Production of Enamel Wires, with reference to the accompanying drawings 2, this device comprises baker 1, the combustion box 2 that is connected with baker, with last tail gas discharging pipe 3, tail gas discharging pipe is provided with blower fan 4, blower fan sucks outside air in the tail gas discharging pipe, tail gas discharging pipe connects the chimney on roof, described baker directly is communicated with combustion box by air guide case 5, the air guide case is that lower port is big, young longitudinal section, upper end is trapezoidal pipeline, wherein the width of lower port equates with the width of baker, the width of upper port equates with the entrance width of combustion box, in combustion box, be provided with thermal-collecting tube 6, the thermal-collecting tube two ends connect the blower fan and the first defeated heat pipe 7 respectively, the combustion box port of export connects heat exchanger 8, heat exchanger is large diameter cylinder pipeline, the port of export of heat exchanger connects described tail gas discharging pipe, the coil pipe 9 of in heat exchanger, arranging, coil pipe is that spiral form is arranged, the coil pipe two ends connect the blower fan and the second defeated heat pipe 10 respectively, the first defeated heat pipe and the second defeated heat pipe are communicated to respectively in two annealing furnaces 11 in the place ahead, be provided with tank 12 between two annealing furnaces, enamelled wire is annealed stove and tank respectively, enters in the baker at last, combustion box is provided with the indication compass 13 whether the heat exchanger port closes, heat exchanger and first, heat-barrier material is all wrapped up in the second defeated heat pipe outside.
Blower fan advances thermal-collecting tube with the air drum, and by entering in the annealing furnace behind the first defeated heat pipe, thermal-collecting tube is accepted the heat in the combustion box then; Described blower fan is with air drum inlet pipe dish, and by entering in the annealing furnace behind the second defeated heat pipe, described pipe dish is accepted the heat in the heat exchanger then.
Only the preferred embodiments of the present invention are described for convenience of description above; obviously; scope of the present invention is not limited to these preferred embodiments, and all any changes of under the premise of the concept of the present invention the present invention being made all should fall in the scope that the present invention asks for protection.
Claims (9)
1. the heat recovery method in the Production of Enamel Wires, enamelled wire is through first annealing furnace (11), second annealing furnace (14) is again to baker (1), adopt the heat baking in the baker, and produce combustible waste gases simultaneously, this method is collected combustible waste gases, combustion heating then, pass heat back first again, second annealing furnace, improve efficiency of utilization, specifically be twice thermal-arrest by thermal-collecting tube (6) in the combustion box (2) and the coil pipe (9) in the heat exchanger (8), respectively by the first defeated heat pipe (7), the second defeated heat pipe (10) advances first annealing furnace with waste heat recovery, second annealing furnace, this heat recovery method comprises following steps:
(a) combustible waste gases in the baker imports combustion box, the heat release of burning, and the tail gas delivery heat exchanger after the burning is discharged by tail gas discharging pipe at last;
(b) blower fan imports thermal-collecting tube with air, carries out the thermal-arrest first time, and heated air is transferred to first annealing furnace by the first defeated heat pipe;
(c) blower fan imports coil pipe with air, carries out the thermal-arrest second time, and heated air is transferred to second annealing furnace by the second defeated heat pipe;
(d) enamelled wire at first pass through (b) and (c) in first annealing furnace and second annealing furnace, carry out electric heating, the hot heat of mixing processing of gas, the baker that enters then in (a) toasts, described first annealing furnace and second annealing furnace all adopt electric heating, the hot hybrid mode of gas, making full use of under the waste heat situation, carrying out electrothermal treatment as required.
2. the heat recovery method in the Production of Enamel Wires according to claim 1 is characterized in that described thermal-collecting tube, coil pipe and tail gas discharging pipe are isolated mutually.
3. the heat recovery method in the Production of Enamel Wires according to claim 1 is characterized in that, the igniter in the described combustion box is the spark plug discharge igniting.
4. the heat recovery method in the Production of Enamel Wires according to claim 1, it is characterized in that the temperature in the described combustion box is 800～900 ℃, after burning and the exchange for the first time, temperature is reduced to 350 ℃～450 ℃, and secondary exchange back temperature is reduced to 150 ℃～250 ℃.
5. the heat recovery device in the Production of Enamel Wires, comprise baker (1), the combustion box that is connected with baker (2), with last tail gas discharging pipe (3), it is characterized in that: in combustion box, be provided with thermal-collecting tube (6), the thermal-collecting tube two ends connect the blower fan (4) and the first defeated heat pipe (7) respectively, the combustion box port of export connects heat exchanger (8), the port of export of heat exchanger connects described tail gas discharging pipe, the coil pipe (9) of in heat exchanger, arranging, the coil pipe two ends connect the blower fan and the second defeated heat pipe (10) respectively, and the first defeated heat pipe and the second defeated heat pipe are communicated to respectively in first annealing furnace (11) and second annealing furnace (14) in the place ahead.
6. the heat recovery device in the Production of Enamel Wires according to claim 5, described baker directly is communicated with combustion box by air guide case (5), and combustion box is provided with the indication compass whether the heat exchanger port closes.
7. the heat recovery device in the Production of Enamel Wires according to claim 5, described tail gas discharging pipe is provided with blower fan, and blower fan sucks outside air in the tail gas discharging pipe, and tail gas discharging pipe connects the chimney on roof.
8. the heat recovery device in the Production of Enamel Wires according to claim 5, be provided with tank (12) between described first annealing furnace and second annealing furnace, enamelled wire is annealed stove and tank respectively, enters at last in the baker, is provided with temperature sensor in annealing furnace inside.
9. the heat recovery device in the Production of Enamel Wires according to claim 5, described heat exchanger are large diameter long tube cylinder pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2009101526259A CN101714428B (en) | 2009-09-07 | 2009-09-07 | Afterheat recycling method and device thereof in enamelled wire production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101526259A CN101714428B (en) | 2009-09-07 | 2009-09-07 | Afterheat recycling method and device thereof in enamelled wire production |
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| CN101714428A CN101714428A (en) | 2010-05-26 |
| CN101714428B true CN101714428B (en) | 2011-06-08 |
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| CN103292334B (en) * | 2013-06-27 | 2015-06-24 | 吴竺 | Waste gas processing method and device for forming machine |
| CN103470951B (en) * | 2013-09-13 | 2016-04-20 | 新疆敦华石油技术股份有限公司 | A kind of accumulator tank Waste resources reused utilized device |
| CN104651593A (en) * | 2014-06-24 | 2015-05-27 | 徐家成 | Device for utilizing afterheat of thermal treatment furnace |
| CN109166664B (en) * | 2018-07-26 | 2020-06-26 | 苏州鼎力福机电科技有限公司 | Waste heat recovery device in enameled wire production |
| CN109326384B (en) * | 2018-10-11 | 2024-04-30 | 金颖 | Horizontal enameling machine |
| CN114563486A (en) * | 2022-03-16 | 2022-05-31 | 珠海格力电工有限公司 | Solid content testing method for insulating paint |
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Effective date of registration: 20170920 Address after: 321015 Zhejiang province Jinhua City Jindong Cao Zhai Zhen industrial function zone 1 buildings, 2 buildings, 3 buildings Patentee after: Jinhua Datian wire stock Co., Ltd. Address before: 321031, Zhejiang, Jinhua province Jindong Cao Town East Industrial Zone, Jinhua City Heng Fei electrical materials Co., Ltd. Patentee before: Jihua Hengfei Wire Material Co., Ltd. |
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Granted publication date: 20110608 Termination date: 20180907 |